Siemens Plant Central Clock TC100 - Manual (Page 94)

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SICLOCK ® TC100 Operating Instructions
Messages
12
The messages are classified under four different types of event:
• System (capacity for approx. 1,500 entries)
• Application (capacity for approx. 4,500 entries)
• Information (capacity for approx. 21,500 entries)
• Warning (capacity for approx. 3,000 entries)
Messages for which an outgoing event is triggered are termed persistent indica-
tions. Persistent indications are, e.g., alarms.
For further information, see Archive (Chapter 7.4).
Note
Each type of event is managed in its own buffer in the device. If a buffer is full, the
next message of this type overwrites the oldest message in the buffer.
The size of the information buffer is sufficient for approx. 45 days. This in an ave-
rage value based on experience. However, the message volume can vary accor-
ding to the operating conditions and plant configuration.
Table 12-1 Overview of messages, with event type and brief description
Recording a synchronization input
Information The recording of a synchronization input is pending because a threshold value has
been exceeded.
The battery has been switched off
Application A user has used the Configuration Tool to switch off the battery in readiness for
storage.
See also Battery (Chapter 9.3.6).
Battery has been switched on automatically
Application After a minimum period of operation, the battery was switched on automatically.
See also Battery (Chapter 9.3.6).
Bootloader has been updated
System and
Information The bootloader has been successfully installed.
Bootloader has NOT been updated
System and
Information The bootloader could not be installed.